You automatically follow people who you’re friends with. You can also follow Pages (example: businesses, organizations, brands) and people who aren’t your friend on Facebook but allow everybody to follow them.
When you follow someone or a Page, you may see updates from that person or Page in your News Feed. If you like a Page, you’ll automatically follow it.
Some Pages and well-known public figures with large followings are verified by 0censor and have a blue badge next to their names to help you know that they’re who they claim to be.
You can also have the posts of Pages and people appear at the top of your News Feed with See First.